Bi-Tec MAT-40 Underlayment Sa - 2 Sq. Roll

SKU: 283149

MAT-40 is a durable waterproofing tile and metal roofing underlayment consisting of high-strength, dimensionally stable polyester, in combination with fiberglass scrim. It is coated with a specially formulated SBR polymer modified adhesive applied to the roll's bottom surface. A split release film, treated with silicone, is applied to the adhesive surface to facilitate application. Top surface is composed of polyester fabric. A 2-inch selvedge edge is applied to the top surface in order to create a waterproof seal at side laps. MAT-40 can be applied in conditions where roof temperatures exceed 260°F (126.7°C). Features: Monolithic coating and saturating process, Not laminated or dual-compound. This means 100% waterproofing performance and ease of application. Resists punctures and tears. Self-sealing around nails. Modifier is 100% SBR. Excellent surface for polyurethane foam adhesive. Retains roof-loaded tiles with no degradation of waterproofing properties of the product. No abrasive surface to contact with metal roof panels. Can be left exposed to weather for 120 days without deterioration or substantial physical property changes. Polyester fabric will not rot or decay. Economical to use.

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